title: Risk factors of morbidity and mortality following hip fracture surgery.
abstract: BACKGROUND
  The preoperative coexisting chronic systemic illness, delay in surgery, gender, and age were considered as risk factors for the complications after hip fracture surgery. The wider range of surgical delay and immobility-related pulmonary morbidity may affect postoperative complications and mortality. This study examined the risk factors for morbidity and mortality following the hip fracture surgery.
  
  
  METHODS
  The patient data was collected retrospectively. The consecutive 506 patients with hip fracture surgery, aged 60 years or older, were included. The patients' age, gender, preexisting diseases, American Society of Anesthesiologists (ASA) classification, delay in surgical repair, duration of surgical procedure, and methods of anesthesia were noted. The thirty-day postoperative complications were reviewed, and cardiac complications, pulmonary complications, delirium, and death were recorded. The data was analyzed for postoperative complications and risk factors.
  
  
  RESULTS
  Atelectasis was associated with postoperative pulmonary complications. Male gender and age ≥ 80 years were associated with an increased incidence of postoperative delirium. ASA classification 3 was associated with death. A delay in surgery was not associated with any complications. Preexisting diseases and methods of anesthesia did not affect mortality and postoperative complications.
  
  
  CONCLUSIONS
  The results suggest that a delay in surgery did not affect the postoperative complications and morbidity.
authors.affiliation: Department of Anesthesiology and Pain Medicine, Yeungnam University College of Medicine, Daegu, Korea.
authors.forename: Seung Dong
authors.initials: SD
authors.lastname: Kim
authors.forename: Sang Jin
authors.initials: SJ
authors.lastname: Park
authors.forename: Deok Hee
authors.initials: DH
authors.lastname: Lee
authors.forename: Dae Lim
authors.initials: DL
authors.lastname: Jee
keywords: Hip fractures; Morbidity; Mortality